Home / 28,029.61-42,057.15-10,500.76

Finding the Fourth Proportional to 28,029.61, 42,057.15 and 10,500.76

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Solution

The fourth proportional to 28,029.61, 42,057.15 and 10,500.76 is: 15,755.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,029.61 : 42,057.15 = 10,500.76 : x
  2. Step 2: Convert to fraction form
    28,029.61/42,057.15 = 10,500.76/x
  3. Step 3: Cross multiply
    28,029.61x = 42,057.15 × 10,500.76
  4. Step 4: Simplify right side
    28,029.61x = 441,632,038.43
  5. Step 5: Solve for x
    x = 441,632,038.43/28,029.61
  6. Step 6: Final answer
    x = 15,755.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.